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author | 2009-04-02 16:59:48 -0700 | |
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committer | 2009-04-02 19:05:11 -0700 | |
commit | 4f032ac4122a77dbabf7a24b2739b2790448180f (patch) | |
tree | 6a56afe2e32f346f2d24ac592a7cfdd0263c1629 /net | |
parent | ia64: implement interrupt-enabling rwlocks (diff) | |
download | linux-4f032ac4122a77dbabf7a24b2739b2790448180f.tar.gz linux-4f032ac4122a77dbabf7a24b2739b2790448180f.tar.bz2 linux-4f032ac4122a77dbabf7a24b2739b2790448180f.zip |
cpumask: fix slab corruption caused by alloc_cpumask_var_node()
Fix slab corruption caused by alloc_cpumask_var_node() overwriting the
tail end of an off-stack cpumask.
The function zeros out cpumask bits beyond the last possible cpu. The
starting point for zeroing should be the beginning of the mask offset by a
byte count derived from the number of possible cpus. The offset was
calculated in bits instead of bytes. This resulted in overwriting the end
of the cpumask.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Acked-by: Mike Travis <travis.sgi.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: <stable@kernel.org> [2.6.29.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions